Question

Which 2 procedures would you compare to examine the effect of exercise on the cardiac cycle and why.

Procedure 1- supine

Procedure 2- sitting, feet on floor

Procedure 3- sitting, arms crossed deep breathing

Procedure 4- recovery from exercise

Answer 1

Dear Student,

During exercise the cardiac rate increases thereby increasing the stroke volume

Examination results of the effects of exercise:

Procedure 2 :First the subject should be positioned in a relaxed and sitting position and record the readings for 20-30 seconds .Then patient is asked to make some exercise and recording must be done immediately.

Then procedure 4 must be performed (recovery from exercise) .This is because during exercise,muscle movement will generate EMG signals which will mask ECG signals which is of no use.